Line data    Source code

       1             : // Copyright 2015 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #ifndef V8_AST_AST_EXPRESSION_REWRITER_H_
       6             : #define V8_AST_AST_EXPRESSION_REWRITER_H_
       7             : 
       8             : #include "src/allocation.h"
       9             : #include "src/ast/ast.h"
      10             : #include "src/ast/scopes.h"
      11             : #include "src/zone/zone.h"
      12             : 
      13             : namespace v8 {
      14             : namespace internal {
      15             : 
      16             : // A rewriting Visitor over a CompilationInfo's AST that invokes
      17             : // VisitExpression on each expression node.
      18             : 
      19             : // This AstVistor is not final, and provides the AstVisitor methods as virtual
      20             : // methods so they can be specialized by subclasses.
      21             : class AstExpressionRewriter : public AstVisitor<AstExpressionRewriter> {
      22             :  public:
      23             :   explicit AstExpressionRewriter(Isolate* isolate) {
      24             :     InitializeAstRewriter(isolate);
      25             :   }
      26        2072 :   explicit AstExpressionRewriter(uintptr_t stack_limit) {
      27             :     InitializeAstRewriter(stack_limit);
      28             :   }
      29        2072 :   virtual ~AstExpressionRewriter() {}
      30             : 
      31             :   virtual void VisitDeclarations(Declaration::List* declarations);
      32             :   virtual void VisitStatements(ZoneList<Statement*>* statements);
      33             :   virtual void VisitExpressions(ZoneList<Expression*>* expressions);
      34             : 
      35             :   virtual void VisitLiteralProperty(LiteralProperty* property);
      36             : 
      37             :  protected:
      38             :   virtual bool RewriteExpression(Expression* expr) = 0;
      39             : 
      40             :  private:
      41       40384 :   DEFINE_AST_REWRITER_SUBCLASS_MEMBERS();
      42             : 
      43             : #define DECLARE_VISIT(type) virtual void Visit##type(type* node);
      44             :   AST_NODE_LIST(DECLARE_VISIT)
      45             : #undef DECLARE_VISIT
      46             : 
      47             :   DISALLOW_COPY_AND_ASSIGN(AstExpressionRewriter);
      48             : };
      49             : 
      50             : }  // namespace internal
      51             : }  // namespace v8
      52             : 
      53             : #endif  // V8_AST_AST_EXPRESSION_REWRITER_H_